A group of n boys can be arranged in a line in a certain number of ways.

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A group of n boys can be arranged in a line in a certain number of ways. By adding two more boys to the group, the number of possible arrangements increases by a factor of 420. Find the value of n.

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Cambridge International AS & A Level Mathematics Probability & Statistics 1 Coursebook

ISBN: 9781108407304

1st Edition

Authors: Dean Chalmers, Julian Gilbey

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Question Posted: Sep 13, 2021 02:20 AM

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A group of n boys can be arranged in a line in a certain number of ways.

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Given Number of ways a group of n boys can be arranged in a line A n nn1n2321 And after a...View the full answer

Cambridge International AS & A Level Mathematics Probability & Statistics 1 Coursebook

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